Liquid pump



Oct. 22, C H R|KERT 2,018,092

MQUID- PUMP Filed Dec. 24. 1934 2 sheets-sneu 1 Oct. 22, 1935.

C. H. RICK'ERT LIQUID PUMP Filed Dec. 24. .1934

2 Sheets-Sheet 2 v wuaboz C/ /f/CKEHT Patented Oct. 22, 1935 UNITED.STATI-:s

PATENT OFFICE:

2 Claims.

The invention aims to provide a simple and inexpensive, well-balanced,eflicient and longlived rotary pump designed primarily for irrigationpurposes but not restricted to this field of use.

With the foregoing in view, the invention re sides in the novel subjectmatter hereinafter described and claimed, description being accomplishedby reference to the accompanying drawings.

Fig. 1 is a central longitudinal sectional view through a pumpconstructed in accordance with the invention'.

Figs. 2 and 3 are horizontal sectional views on lines 2-2 andv 3 3 ofFig. 1, respectively.

Fig. 4 is a perspective view of the lower section of the casing.

Fig. 5 is a perspective view of the rotor.

The pump casing C is provided with a cylindrical side wall 8, with alower end wall 9 and with an upper end wall I0, said lower end wall 9beingprovided with a liquid inlet li while said end wall I is formedwith a liquid outlet l2, said inlet and outlet being centrally locatedand being suitably adapted for connection with pipes or couplings I3 andI4 respectively. The casing is preferably formed of upper and lowerhalves flanged and secured together by bolts I or connected with eachother in some other adequate disk I 9 centrally secured to the lower endof said shaft, and a plurality of spirally directed vanes 20 secured tothe lower side of said disk. The disk I9 is disposed about midwaybetween the end walls 9 and I0 and its peripheral edge is spaced fromthe casing side wall 8. The vanes 20 extend to the edge of the disk I9from the periphery of the liquid inlet I I and the curvature of thesevanes radially deliversthe liquid from the rotor and of course alsomoves the liquid circumferentially. l

Helically pitched vanes 2l are secured to the cylindrical side wall 8 ofthe casing between the peripheryof the rotor and said side wall, saidvanes 2l being so pitched as to elevate theliquid into the space betweenthe disk I9 and the end wall I0. Fixedly mounted in this space,preferably by securing them to the end wall I0 and the extending fromsaidside wall to said outlet. I

(Cl. 10S-103) side Wall 8, are spirally pitched vanes 22 which directthe liquid to the outlet l2.

I preferably provide a web 23 extending dia.- metrically across theinlet II in a plane extendling longitudinally of the axis of'said inlet,for 5 the purpose of preventing whirling of the liquid during itspassage through said inlet, thus allowing the spirally pitched vanes tomore effectively act upon the liquid to centrifugally deliver it. 1o

The shaft i8 may, of course, be driven in any suitable way and when thisshaft is rotated, the liquid is" centrifugally delivered by the rotorvanes 20 and is circumferentially moved also by these vanes. Thecircumferentially moving, i'al5 dially delivered liquid is elevated bythe helically directed vanes 2l and this liquid is directed tothe outletI2 by the spiral vanes 22. 'Ihe pump is well balanced, requires littlepower for its operation, is highly eiiicient, and long-lived.

While the details disclosed may be followed if desired, variations mayof courseA be made within the scope of the invention as claimed.

vI claim:

1. A water pump comprising a cylindrical cas- 25 ing whose length isless than its diameter, said casing having one ilat end wall providedwith a central relatively small inlet spanned by a flat web in a planeunidirectional with the casing axis, said casing having a second flatend wall provided with a central outlet of substantially `the samediameter as said inlet, a bearing secured centrally in said outlet, arotor in said casing co-axial with the cylindrical side wall of saidcasing, said rotor comprising a central shaft ro- 3" tatably andnon-slidably mounted in said bearing, a flat imperforate disk secured atits center to said shaft and situated substantially midway between saidend walls, the peripheral edge of 40 said disk being spaced from saidcasing side wall, I

and spirally directed water-moving vanes secured to the side of saiddisk toward said one end wall, said vanes extending from said disksubstantially to said one end wall and extending 5 from said inlet tosaid edge of said disk, helically directed water-moving vanes secured tosaid casing side wall around said rotor and extending from said one endwall substantially to the plane of said disk, and spirally directedwater-moving vanes situated between said disk and said'second endwallfthese vanes being secured to said second end wall and to said sidewall, extending from said second end wall toward said disk and 2. Awater pump comprising a cylindrical casing -whose length is less thanits diameter, said casing having one end wall provided with a centralrelatively small inlet, said casing having a second end wall providedwith a central outlet of substantially the same diameter as said inlet,a bearing secured centrally in said outleta rotor in said casing coaxialwith the cylindrical side wall of said casing, said rotor comprising a,central shaft rotatably and non-slidably mounted in said bearing, animperiorate disk'secured at its4 center to said shaft and situatedsubstantially midway between said end walls.- the peripheral edge ofsaid disk being spaced from said casing side wall. and splrally directedwater-moving vanes secured to the side oi said disk toward said one endwall, said vanes extending from said disk substantially to said one endwall and extending from said inlet tesaid edge of said disk, helicallydirected water-moving vanes secured to said casing side wall around saidrotor and extending from said one end wall substantially to the plane ofsaid disk. and spirally directed, water-moving vanes situated betweensaid disk and said second end walll these vanes being secured. to saidsecl0 ond end wall and to said side wall, extending from said second endwall toward said disk and extending from said side wall to said outlet.

'crm Hi RICKERT. is

